Precious stone



FIG. 1 is a top, front, left side perspective view of the precious stone;

FIG. 2 is a front side elevational view thereof, the back side elevational view being identical thereto;

FIG. 3 is a left side elevational view thereof, the right side elevational view being identical thereto;

FIG. 4 is a top plan view thereof, and,

FIG. 5 is a bottom plan view thereof. 

CLAIM The ornamental design for a precious stone, as shown and described. 